Revision Library
/Subjects/Computer Science/Daily Practice
Daily Practice · GCSE Computer Science

October 1982 5-a-day

← Today's GCSE Computer Science sheet

October 1982

31 sheets · 155 questions · GCSE

October 1982 compilationAll answers

Every sheet in October 1982

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st October 1982Distinguish between the network security threats known as phishing and pharming.
  2. 2nd October 1982Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  3. 3rd October 1982A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  4. 4th October 1982A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  5. 5th October 1982A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
  6. 6th October 1982State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  7. 7th October 1982State the key difference between a procedure and a function.
  8. 8th October 1982Give one example of an optical secondary storage device.
  9. 9th October 1982Define the term protocol.
  10. 10th October 1982State the term used for realistic data that a program would be expected to handle during normal use.
  11. 11th October 1982Give one advantage of a relational database over a flat-file database.
  12. 12th October 1982State the difference between lossy and lossless compression.
  13. 13th October 1982State the condition that must be met before a binary search can be used on an array.
  14. 14th October 1982A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
  15. 15th October 1982Convert the hexadecimal number 3F to denary.
  16. 16th October 1982Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  17. 17th October 1982Explain the purpose of a breakpoint.
  18. 18th October 1982Convert the denary number 45 to hexadecimal.
  19. 19th October 1982What does the acronym CPU stand for?
  20. 20th October 1982State what the term malware means.
  21. 21st October 1982Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  22. 22nd October 1982An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  23. 23rd October 1982Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  24. 24th October 1982Which piece of UK legislation controls how organisations must store and use people's personal data?
  25. 25th October 1982Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  26. 26th October 1982A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
  27. 27th October 1982Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  28. 28th October 1982Name the four layers of the TCP/IP model in order from the one closest to the user.
  29. 29th October 1982A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  30. 30th October 1982A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  31. 31st October 1982State one function carried out by the operating system of a computer.